Flag Register Of 8085

Flag Register Of 8085. Last Updated 22 May 2018 Problem – Write an assembly language program in 8085 microprocessor to access Flag register and exchange the content of flag register F with register B Example – Assumptions – Initial values of flag register register B and stack pointer are is 00 3F and 3FFF respectively PSW stands for PROGRAM STATUS WORD.

Accumulator It is an 8bit register used to perform arithmetic logical I/O & LOAD/STOREArithmetic and logic unit As the name suggests it performs arithmetic and logicalGeneral purpose register There are 6 general purpose registers in 8085 processor ie B CProgram counter It is a 16bit register used to store the memory address location of theStack pointer It is also a 16bit register works like stack which is alwaysTemporary register It is an 8bit register which holds the temporary data of arithmetic andFlag register It is an 8bit register having five 1bit flipflops which holds either 0 or 1Instruction register and decoder It is an 8bit register When an instruction is fetched fromTiming and control unit It provides timing and control signal to the microprocessor toInterrupt control As the name suggests it controls the interrupts during a process When a.

Registers of 8085 microprocessor GeeksforGeeks

In 8085 microprocessor flag register consists of 8 bits and only 5 of them are useful The 5 flags are Sign Flag (S) – After any operation if the MSB (B(7)) of the result is 1 it indicates the number is negative and the sign flag becomes set ie 1 If the MSB is 0 it indicates the number is positive and the sign flag becomes reset ie 0.

Explain flag register of 8085 microprocessor Ques10

General Purpose RegistersTemporary RegistersSpecial Purpose RegistersSixteenbit RegistersRegisters B C D E H and L are general purpose registers in 8085 Microprocessor All these GPRS are 8bits wide They are less important than the accumulator They are used to store data temporarily during the execution of the program For example there is no instruction to add the contents of Band E registers At least one of the operands has to be in A Thus to add Band E re.

Flag register in the 8085 microprocessor

The 8085 has six generalpurpose registers to store 8bit data these are identified as B C D E H and L These can be combined as register pairs – BC DE and HL to perform some 16bit operation These registers are used to store or copy temporary data by using instructions during the execution of the program.